Practical 2 Flashcards
(32 cards)
What type of injury can lead to PCL innervation?
Getting hit on the anterior knee when the knee is flexed because it causes the tibia to translate posterior and tear the PCL.
What muscles are responsible for “goose foot”
Sartorius, Gracilis, Semitendanosus.
What does “goose foot” do?
These muscles cause a slight medial rotation when locking the knee.
Describe the muscle innervated by the common fibular nerve?
Short Head of Biceps
What are the muscles affected by common fibular nerve injury?
Responsible for anterior compartment of the leg (deep fibular) which control dorsiflexors, toe extender, and 100% of inversion.
Also responsible for lateral compartment of leg (superficial fibular) which control 50% of eversion.
What is the presentation for someone who has common fibular nerve damage?
Foot Drop and Eversion.
Gait: Person would have “clomping” gait in order to keep toes from dragging on the ground while walking.
A gunshot to the natal cleft makes what nerve the most susceptible to damage?
Tibial Branch of Sciatic Nerve
What is the bony prominence that you locate when doing a transsacral epideral?
PSIS: Dimples on either side of spine. Where skin adheres to bone.
What is the bony prominence that you locate when doing a lumbar puncture?
The apex of the ilium.
What muscles are dennervated by superior gluteal nerve damage?
Gluteus Medius, Gluteus Minimus, TFL.
Gluteus medius and minimus stabilize pelvis.
What is the presentation for someone with superior gluteal nerve damage?
Tilted pelvis toward side of the injury.
Gait: Person will walk with a limp if tilt is severe enough. Will have “waddle gait” because you have to hoist injured side forward.
A PCL injury could put what nerve at risk because of posterior dislocation of the tibia?
Popliteal Nerve (Tibial Nerve)
Injury to popliteal nerve (tibial nerve) will cause denervation to what muscles?
Entire posterior thigh and leg muscles.
Intrinsic muscles of the foot.
What is the presentation for someone with injury to the popliteal (tibial) nerve?
Paralysis to muscles will cause leg to be in extension at the knee and dorsiflexion.
Gait: Will walk with heel strike.
What muscles are found in the posterior triangle?
Scalenes (Anterior, Posterior, Middle)
Inferior Belly of the Omohyoid
What 3 triangles is the anterior triangle further subdivided into?
Carotid Triangle
Muscular Triangle
Digastric Triangle
What is the primary action of the muscles found in the digastric triangle?
Elevation of the hyoid bone
What muscles are found in the digastric triangle?
Posterior and Anterior Belly of the digastric muscles
What is the function of the hyoid bone?
Epiglottis depresses when hyoid bone and thyroid cartilage raises during swallowing.
So when you swallow food or water the swallowing motion will raise the hyoid and thyroid cartilage so that the epiglottis will close so you don’t choke.
What muscles are found in the muscular triangle?
The strap muscles:
Sternohyoid
Superior Belly of Omohyoid
Sternothyroid
Thyrohyoid
What is the function of the muscles found in the muscular triangle?
These muscles depress the hyoid so the epiglottis will raise and allow us to breathe.
What structure are found within the carotid triangle?
External Carotid
Internal Carotid
Jugular Vein
Vagus Nerve
What is the function of the vagus nerve?
Maintaining all body functions that allow us to have homeostasis
What are the 4 cutaneous nerves of the Cervical Plexus?
Transverse Cervical Nerve
Greater Auricular Nerve
Lesser Occipital Nerve
Supra-Clavicular
